Ive seen the video on the tube where the shark blows up at the end, seems it was too difficult to maintain tho. Like the part where the shark grabs the boat and pulls it, that should have stayed with the attraction 
ok picture this, u on the ride having fun ,then it breaks down u cant get out, u have no food nor water and its hot outside , so that's why that part of the ride, was taken out due to, technical difficulties and dangerous to guest. yet but anyway, i did get a glimpse of the shark details in jaws in 1990 it was so realistic ,but now its just colorful and bright not scary at all, to the kids it might, but to me im 22 does not look good ,in my opinion.